Joint Source-Channel Coding with Correlated Interference

Yu-Chih Huang*, Krishna R. Narayanan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

In this paper, we study the joint source-channel coding problem of transmitting a discrete-time analog source over an additive white Gaussian noise (AWGN) channel with interference known at transmitter. We consider the case when the source and the interference are correlated. We first derive an outer bound on the achievable distortion and then, we propose two joint source-channel coding schemes to make use of the correlation between the source and the interference. The first scheme is the superposition of the uncoded signal and a digital part which is the concatenation of a Wyner-Ziv encoder and a dirty paper encoder. In the second scheme, the digital part is replaced by a hybrid digital and analog scheme so that the proposed scheme can provide graceful degradation in the presence of (signal-to-noise ratio) SNR mismatch. Interestingly, unlike the independent interference setup, we show that neither of both schemes outperform the other universally in the presence of SNR mismatch.

Original languageEnglish
Title of host publication2011 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT)
PublisherIEEE
Pages1136-1140
Number of pages5
DOIs
StatePublished - 2011
EventIEEE International Symposium on Information Theory (ISIT) - St Petersburg
Duration: 31 Jul 20115 Aug 2011

Conference

ConferenceIEEE International Symposium on Information Theory (ISIT)
CitySt Petersburg
Period31/07/115/08/11

Keywords

  • Distortion region
  • joint source-channel coding
  • cognitive radios
  • SIDE INFORMATION

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